Xiaomi SU7 Ultra Answers: Track Version Battery, External Speakers, Downforce Explained

Xiaomi SU7 Ultra Answers: Track Version Battery, External Speakers, Downforce ExplainedXiaomi Automobile officially released the 79th episode of "Xiaomi Automobile Answers to Netizens," addressing questions from netizens about the external speakers, track version battery, and downforce of the Xiaomi SU7 Ultra. Here are the key takeaways compiled by IT Home:1

Xiaomi SU7 Ultra Answers: Track Version Battery, External Speakers, Downforce Explained

Xiaomi Automobile officially released the 79th episode of "Xiaomi Automobile Answers to Netizens," addressing questions from netizens about the external speakers, track version battery, and downforce of the Xiaomi SU7 Ultra. Here are the key takeaways compiled by IT Home:

1. How many external speakers does the Xiaomi SU7 Ultra have? Can they play music?

The Xiaomi SU7 Ultra has two external speakers, including a newly added 40W speaker at the rear. Its primary function is to play high-performance sports sound effects, enhancing driving safety. The sports sound function can be turned on or off. It is recommended to activate it in appropriate environments to avoid disturbing others. The external speakers currently do not support playing music or other custom content.

2. What is special about the track version battery of the Xiaomi SU7 Ultra?

The track is one of the most demanding tests for electric vehicles, requiring batteries with extremely high discharge power, cooling capabilities, and charging speed. The Xiaomi SU7 Ultra production version is equipped with a track version high-power battery pack derived from the prototype vehicle, offering the following advantages:

• Ultra-high discharge power and rate: Peak voltage reaches 897V, maximum discharge power reaches 1330kW, and maximum discharge rate is 16C. Even at 20% charge, it can release a maximum power of 800kW, surpassing the performance of some "pure electric beasts" when fully charged.

• Efficient cooling technology: Through high-conductivity electrolytes and high-porosity porous electrodes, the cell internal resistance is lowered to 0.25m, the lowest in the world for mass production, effectively reducing heat generation during battery operation. The battery pack also uses industry-leading dual large-surface active cooling technology, with a peak heat exchange power of 18kW, ensuring that the battery can maintain a suitable operating temperature even after two laps at the Nurburgring.

• Ultra-fast charging speed: Combining Xiaomi's "atomic charging" and "near-cooling source tab cooling" technologies, the battery pack can achieve a 5.2C ultra-high charging rate, requiring only 11 minutes to charge from 10% to 80%, easily meeting the needs for quick energy replenishment on the racetrack.

In addition, the Xiaomi SU7 Ultra track version high-power battery pack inherits the safety genes of Xiaomi CTB integrated battery, adopting cell inversion technology, 14 layers of physical structure protection, 7.3m dual large-surface cooling, 170 pieces of aerogel, 17 layers of high-voltage insulation protection, and a vehicle-cloud collaborative safety warning system. Even at a high temperature of 55 and full charge, a single cell thermal failure will not result in thermal runaway.

3. What benefits does the 285kg downforce provide in everyday driving?

The Xiaomi SU7 Ultra can generate a maximum downforce of 285kg at a top speed of 350km/h. However, the downforce will significantly decrease at everyday driving speeds. For example, at a speed of 120km/h, the total downforce is approximately 33kg.

Nevertheless, the additional downforce can still significantly enhance handling stability in everyday driving. This is because increased downforce means the vehicle can gain extra grip without adding inertia. This manifests in:

• Improved stability during emergency lane changes, high-speed driving, and slippery road conditions: It effectively reduces understeer and oversteer, making it easier to handle road bumps.

4. After upgrading to 1.4.0, how do I share my driving mode with others? How do I add someone else's driving mode?

The Xiaomi SU7 MAX model offers a wide range of customizable driving parameter settings. After upgrading to 1.4.0, users can share their defined driving modes with other users through a sharing code.

In "Settings - Driving Preferences," click on the M1 or M2 mode, then click the share icon to generate a 9-digit sharing code and a performance parameter brief. Similarly, in the M1 or M2 customization interface, you can add other users' 9-digit sharing codes to easily obtain various personalized driving modes.